Question

why does the inner lining of the uterus thiken each month? what will happen if this ineer lining thikens only when fertilization has occurred ?​

Answer 1

Answer:

The endometrium is the inner lining of the uterus. Each month, the endometrium thickens and renews itself, preparing for pregnancy. If pregnancy doesn't occur, the endometrium sheds in a process known as menstruation. If conception takes place, the embryo implants into the endometrium